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Study of Gamma Ray Buildup Factor for Different composites | ||
| Diyala Journal For Pure Science | ||
| Article 1, Volume 9, Issue 3, 2013, Pages 33-43 | ||
| Authors | ||
| K.H Mahdi; ; | ||
| Abstract | ||
| In this work, gamma ray buildup factor was calculated and studied for different composite materials which consist from unsaturated polyester ( UP) as a matrix and (Fe ,Cu ) as reinforced materials with different types of reinforced (powder, laminates and fibers) .The effect of increasing of matel concentration (10,20,30,40,50)%, thickness (1,2,3,4,5) cm and effect of type of reinforcement and orientation of reinforced fibers (0,45,90) degree on buildup factor were studied. The results show that the buildup factor decreased with the increasing of matel concentration. While it increasing with increasing thickness of the shield. The best way for reinforced of the matel (the lowest of buildup factor ) was for the laminated reinforced material. The best shield that used for different orientations of fiber when angle between the first and second layer is 45o. Energy of 662 keV of gamma ray from 137Cs source of 10 µci was used with (3"x3") NaI(Tl) detector with an integrated measuring system. | ||
| Keywords | ||
| buildup factor | ||
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